Traction device for vehicle-wheels.



w. R. EDWARDS. TRACTION DEVICE FOR VEHICLE WHEELS,

APPLICATION FILED DEC-B, 1915.

Patented Sept. 26, 1916.

Eamon 11:01 E if Ed wa 7 623 TED STATES PATENT OFFICE.

WALLACE 1i.

EDWARDS, OF RED'OAK, IOWA.

TRACTION DEVICE FOR VEHICLE-WHEELS.

T 0 all whom 1' t .922 (17 con ern Be it known that I, WALLACE R..EDWARDS,

a citizen of the United States, residing at Red Oak, in the county of Montgomery and State of Iowa, have invented new and. useful Improvements-in Traction Devices for Vehicle-Wheels, of which the following is a specification.

This invention relates to traction devices for vehicle wheels, the object in view being to provide a device which is readily applicable to the side of a vehicle wheel and par- 4 ticularly a wheel such as is used in the construction of automobiles and carrying a pneumatic tire, the said device embodying in connection with a series of channel arms extending outwardly from a hub embracing collar, a corresponding series of traction spikes orunembers which are adjustable 1n- Wardly arid outwardly in relation to the center of the wheel and longitudinally of the channel arms, whereby greater or less projection of the ends of the traction members beyond the tread surface of the tire may be obtained, means being prbvided whereby the traction arms are clamped to certain spokes of the Wheel and also means whereby, the traction members or spik s are securely held in their adjusted relation to the channel arms.

With the above and other objects in View, the invention consists inthe novel construction, combination and arrangement of parts,

as herein described, illustrated and claimed.

In the accompanying drawings :Figure 1 is aside elevation of a wheel showing the traction device of this invention applied thereto. Fig. 2 is an enlarged cross section taken radially of the wheel, showing the re; lation of one of the arms of the device thereto. Fig. 3 is a cross sectionon the line 33 of Fig. 2*

The traction device contemplated in this invention embodies a hub-embracing collar 1 from which radiate a series of arms 2 each consisting of ghannel iron, the flanges 3 thereof being disposed outwardly or away from the side of'the wheel as shown. Clamps 4 are provided "for fastening the arms 2 to the adjacent spbkes, near the" outer ends thereof, thereby securely anchoring-the arms of the spokes of the wheel.

In connection with each of the channel arms 2 I .employ'a traction member or spike 5 of the proper width to fit between the flanges 3 of the channel arm 2. Each trac- Specification of Letters Patent. t t t. gg ifi' g.

Application filed December 8, 1915.

Serial No. 65,820.

tion spike 5 is preferably pointed at its outer extremity so as to penetrate and en-' gage the road surface and-,zis'provided at its inner end with a lateraliy extending tongue or projection 6 adapted tobe entered in any projection 6 in the desired hole 7. The traction. members 5 are laterally applicable to and removable from the arms 2.

From the foregoing description, taken in connection with the accompanying drawings, it will now be understood that the device as a whole may be quickly applied to a vehicle wheel by placing the collar 1 around the hub of the wheel and then clamping the arms 2 to the spokes. The traction spikes or members 5 are then adjusted to give the required amount of projection. The spikes 5 prevent the car from skidding laterally and also impart the necessary tractive properties to the wheel to enable the same to obtain a firm hold on soft or slippery road surfaces. This adds greatly to the safety of the occupants of the vehicle and enables the vehicle to be extricatcd from soft placbs in the road. It i also avoids the necessity (if racing and overheating the engine and also dispenses with thenecessity of using tire. chains which are ln urious to a pneumatic tire.

The device 8 is showngin the form of a collar surrounding the channeled arm 3 and the respective spike 5, the same being retained in its normal position by means of a set screw 9. By loosemn g said set screw the member 8 may he slipped off the end of the spike 7 so as to admit of theadjustment otally to the hub-embracing member or collar 1 by means of bolts 1 2.or their equivalent.

Q to prevent maturing the paint or finish of e hub tne wheei.

1. A traction device fer vehioie WhQQiS eomprising's semis! hub'embracing collar, arms 01?. channel iron extending nadiaii}; out- Wazd from and pivotaliy stmched to said collar eseii provided with a ioi'igituciinnl series of ilOi6S, i-ZE1Ci3i0fi members adjiimsiole iosogitudinsfiy of said mans, each of said srsciv'ion members being provided with a This projeeion or tongue adapted to be iii-- '33 sei'e. through any one of the hoies in the 11 1 speetive arm and; clamping means holdlag-said [W325 and traction members in fixed .reisizion to the Wheel.

1 Having thus described my invention, I .6 es

:2. A ii-action device for vehicle wiweis comprising a- GQIRiZI'Ei hub embwcin g coiizug, arms extending radisfiy outwam from so collar anti each formed with a ionoituc" channei inits ouier face and provided; a longitudinal series of holes inieisecting 1 floor of the channel, and traction members iyiiigiii and adjustable longitudinally of the channels oi arms and laterally remov :ibie ihei'efrom, oah of said traction memhers bQlIlfJ; provided with a promotion or tongue adapted to be inserted in any one she holes in the l'especfiive arm, means f0? elan'aping said arms so the spokes, and. a clamp embracing each traction member the respeoiive arm. 

